On 12 February 2013, North Korea conducted its third and the largest nuclear test to date in the China–North Korea border area. According to local news, people living in nearby Chinese cities experienced shaking from this explosion. The U.S. Geological Survey (USGS) reported the explosion was located at (41.301° N, 129.066° E) and the magnitude was M 5.1. This event trigged abundant regional seismic phases in northeast China, Korea, and Japan. Because of its large magnitude, the seismic records from this event showed better signal‐to‐noise ratios than those from previous two nuclear explosions. Illustrated in Figure 1 are broadband regional...